1.

Without solving the equations find the nature of equation a2x2 +4ax +4 = 0

Answer»

a2x2 +4ax +4 = 0

D = b2 - 4ac

= (4a)2 -4 x a2 x 4

= 16a2 - 16a2

= 0

D = 0

If D = 0, then the quadratic equation has 1 solution.



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